diff options
Diffstat (limited to 'intern/cycles/blender/session.cpp')
| -rw-r--r-- | intern/cycles/blender/session.cpp | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/intern/cycles/blender/session.cpp b/intern/cycles/blender/session.cpp index c81a0f4edb2..405f22ad67a 100644 --- a/intern/cycles/blender/session.cpp +++ b/intern/cycles/blender/session.cpp @@ -506,8 +506,13 @@ void BlenderSession::render_frame_finish() session->set_output_driver(nullptr); session->full_buffer_written_cb = function_null; - /* The display driver holds OpenGL resources which belong to an OpenGL context held by the render - * engine on Blender side. Force destruction of those resources. */ + /* The display driver is the source of drawing context for both drawing and possible graphics + * interop objects in the path trace. Once the frame is finished the OpenGL context might be + * freed form Blender side. Need to ensure that all GPU resources are freed prior to that + * point. + * Ideally would only do this when OpenGL context is actually destroyed, but there is no way to + * know when this happens (at least in the code at the time when this comment was written). + * The penalty of re-creating resources on every frame is unlikely to be noticed. */ display_driver_ = nullptr; session->set_display_driver(nullptr); |